E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
On July 7th, 1792, the Abbé Lamourette induced the different factions of the Legislative Assembly of France to lay aside their differences; so the deputies of the Royalists, Constitutionalists, Girondists, Jacobins, and Orleanists rushed into each others arms, and the king was sent for to see how these Christians loved one another; but the reconciliation was hollow and unsound. The term is now used for a reconciliation of policy without abatement of rancour.